You guys do know that radio waves are part of the electromagnetic spectrum and travel at the speed of light right?
Right, now for a little physics:
385000 Km, distance between the Earth and the Moon.
299792.458 Kms-1, speed of light.
t = d / s
t = 385000 Km / 299792.458 Kms-1
t = 1.28 seconds
1.3 seconds isn't much of a delay fellas.